﻿#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int foo(int n) {
	if(n< 2)
	return n;
	return foo(n-1) + foo(n- 2);
}
int main()
{
	int k;
	int a[3][3] = { 1,2,3,4,5,6,7,8,9 };
	for (k = 0; k < 3; k++)
		printf("%d", a[k][2 - k]);
	printf("\n%d", foo(6));
	return 0;
}